Gas Piping; Viii. Gas Piping - Burnham FREEDOM FCM120 Installation, Operating And Service Instructions

Gas piping to the boiler must be sized to deliver adequate gas for the boiler to fi re at the nameplate input at an inlet
pressure between the minimum and maximum values shown on the rating plate. For more information on gas line
sizing, consult the utility or the National Fuel Gas Code.
Figure 8.1 shows typical gas piping connection to the FCM boiler. A sediment trap must be installed upstream of all gas
controls. Install the factory provided manual shut-off valve outside the jacket with a ground joint union as shown.
The boiler and its gas connection must be leak tested before placing the boiler in operation. When doing this, the boiler
and its individual shut-off must be disconnected from the rest of the system during any pressure testing of that system
at pressures in excess of ½ psi. When pressure testing the gas system at pressures of ½ psi or less, isolate the boiler
from the gas supply system by closing its individual manual shut-off valve.
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VIII Gas Piping
Figure 8.1: Gas Connection To Boiler